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Influenza Surveillance in Ho Chi Minh City

Influenza Surveillance in Ho Chi Minh City. Oxford University Clinical Research Unit Hospital for Tropical Diseases January 22, 2011. What do influenza epidemics look like?. What do epidemics look like?. temperate. ?. winter. temperate. Cox and Subbarao (2000).

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Influenza Surveillance in Ho Chi Minh City

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  1. Influenza Surveillance in Ho Chi Minh City Oxford University Clinical Research Unit Hospital for Tropical Diseases January 22, 2011

  2. What do influenza epidemics look like?

  3. What do epidemics look like? temperate ? winter temperate Cox and Subbarao (2000)

  4. How do influenza viruses migrate? temperate ? winter temperate Cox and Subbarao (2000)

  5. How do influenza viruses migrate? 2002: influenza viruses originated in Fujian province in China. Bedford et al (2010) Cox and Subbarao (2000)

  6. How do influenza viruses migrate? 2006: influenza viruses originated in the United States. Bedford et al (2010) Cox and Subbarao (2000)

  7. GP Networks How are influenza data collected?

  8. Case Definition for ILI

  9. On days that a GP is accepting patients, he or she simply sends a text message like this: 40 15 4.5 Send Cancel number of hours open number of patients seen number of patients with ILI

  10. High ILI Activity Locations of current practices

  11. Current GP ILI surveillance in HCMC

  12. www.ili.vn

  13. All data are collected according to this case definition. We know it is ILI, but we do not know whether it is influenza or not. Thailand, national data % positive for influenza Simmerman et al (2004)

  14. All data are collected according to this case definition. We know it is ILI, but we do not know whether it is influenza or not. % GP visits that are ILI Laboratory counts of positive samples. van den Wijngaard et al (2008)

  15. All data are collected according to this case definition. We know it is ILI, but we do not know whether it is influenza or not. Phase 1: describe ILI trends. Phase 2: determine what percent of ILI patients are influenza positive.

  16. Benefits to GPs and Public Health • Provides a rapid early-warning system for detecting outbreaks of respiratory disease – results are updated daily. • Helps communities and HCMC as a whole understand which months influenza and other respiratory diseases are most likely to circulate. • Helps HCMC-SYT understand if there is a difference between community influenza and hospital-reported influenza. • Participating GPs will have access to website showing all influenza activity in HCMC and their community.

  17. ( compensation for SMS ) ILI Log Book 0972 668 870 3 56 9 25 22 / 1 / 2011 19 34 2th

  18. Thanks All the general practitioners who have been reporting since August 2009.

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